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Table 2 Hazard ratios of BPH-related prostate surgery among men with BPH using finasteride or dutasteride

From: Rates of prostate surgery and acute urinary retention for benign prostatic hyperplasia in men treated with dutasteride or finasteride

 

Finasteride

Dutasteride

Dutasteride vs finasteride

 

Men with BPH-related surgery

PY at risk

Incidence per 1,000 PY (95 % CI)

Men with BPH-related surgery

PY at risk

Incidence per 1,000 PY (95 % CI)

Hazard ratio

 

n (%)f

  

n (%)f

  

Crude (95 % CI)a

Adjusted (95 % CI)

Overall

      

0.83 (0.62–1.10)

0.75 (0.56–0.99)b

Monotherapy

86 (4)

3,132

28 (22–34)

108 (3)

4,356

25 (20–30)

0.85 (0.64–1.13)

0.73 (0.54–0.98)c

Combination therapy

317 (9)

5,646

56 (50–63)

767 (9)

12,685

61 (56–65)

0.91 (0.80–1.04)

0.85 (0.74–0.97)c

Prescriber: GP

Monotherapy

14 (1)

1,201

12 (6–20)

9 (1)

915

10 (5–19)

0.91 (0.39–2.13)

-g

Combination therapy

44 (4)

1,710

26 (19–35)

74 (4)

2389

31 (24–39)

1.07 (0.74–1.56)

1.10 (0.76–1.60)d

Prescriber: Urologist

Monotherapy

26 (11)

142

183 (120–268)

45 (7)

433

104 (76–139)

0.56 (0.35–0.92)

0.77 (0.46–1.30)d

Combination therapy

105 (24)

223

472 (386–571)

272 (16)

1097

248 (219–279)

0.53 (0.42–0.66)

0.62 (0.50–0.78)e

  1. PY person-years, CI confidence interval, GP general practitioner; aAdjusted for geographic location; bAdjusted for geographic location, cohort (mono- or combination therapy), adherence with 5-ARI treatment, prescriber, chronic disease score and number of GP visits); cAdjusted for geographic location, adherence with 5-ARI treatment, prescriber and number of GP visits; dAdjusted for geographic location and adherence with 5-ARI treatment; eAdjusted for geographic location, adherence with 5-ARI treatment and number of drug dispensings; fpercentage of patients with an event in the specific group; gNone of the covariates were associated with BPH-related prostate surgery or 5-ARI treatment